/*
 * Copyright (C) 2013 Atlassian
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.atlassian.jira.rest.client.test.matchers;

import org.hamcrest.Description;
import org.junit.internal.matchers.TypeSafeMatcher;

import java.util.regex.Pattern;

public class RegularExpressionMatcher extends TypeSafeMatcher<String> {
	private final Pattern pattern;

	public RegularExpressionMatcher(Pattern pattern) {
		this.pattern = pattern;
	}

	public static RegularExpressionMatcher matchesRegexp(final Pattern pattern) {
		return new RegularExpressionMatcher(pattern);
	}

	public static RegularExpressionMatcher matchesRegexp(final String pattern) {
		return new RegularExpressionMatcher(Pattern.compile(pattern));
	}

	@Override
	public boolean matchesSafely(String given) {
		return pattern.matcher(given).matches();
	}

	@Override
	public void describeTo(Description description) {
		description.appendText("string matching regular expression " + pattern);
	}
}
